PHYTOTOXIC POTENTIAL OF THE GEOPROPOLIS EXTRACTS OF THE JANDAIRA STINGLESS BEE (Melipona subnitida) IN WEEDS

Authors

  • Daniel Santiago Pereira Botanic Departament, Empresa Brasileira de Pesquisa Agropecuária, Belém, PA
  • João Paulo de Holanda Neto Instituto Federal de Educação, Ciência e Tecnologia do Sertão Paraibano - IF Sertão
  • Mozaniel Santana de Oliveira Federal University of Para image/svg+xml
  • Natanael Santiago Pereira Instituto Federal de Educação, Ciência e Tecnologia do Ceará - IFCE
  • Patrício Borges Maracajá Universidade Federal de Campina Grande - UFCG
  • Antonio Pedro da Silva Souza Filho Embrapa Amazônia Oriental

DOI:

https://doi.org/10.1590/1983-21252017v30n407rc

Keywords:

Allelopathy. Wild bee propolis. Weed plants. Semiarid. Indigenous bees.

Abstract

The objective of the present research is to characterize the phytotoxic activity of geopropolis from the Jandaira bee (Melipona subnitida Ducke) in the state of Ceará in Northeast Brazil and to analyze its effects. Extracts were prepared in 80% v/v grain alcohol at 0.25, 0.5, 0.75, and 1.0%. Their effects were determined on seed germination, radicle elongation, and hypocotyl growth of the pasture weeds malícia (Mimosa pudica) and mata-pasto (Senna obtusifolia). Extract phytotoxicity varied as functions of plant species, application dosage, and plant organ. M. pudica was more sensitive to the inhibitory effects of geopropolis than S. obtusifolia. There was a phytotoxic effect of 50% (PE50) for S. obtusifolia in terms of seed germination and in rootlet development near the maximum applied concentrations. M. pudica had PE50 and PE90 at the minimum concentration (0.25%) and near the maximum (1.00%), respectively. Thus, geopropolis extracts from the Jandaira bee (M. subnitida) are potentially phytotoxic to certain plant species.

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Published

14-06-2017

Issue

Section

Agronomy